ROM Hack Question What is the general procedure of making 60fps patches for switch games?

Shahaan · Feb 13, 2021

To me so far it looks like people go into the game files and alter values
It looks like these patches target files in the game and change a couple of values to make them, but I can't fathom how you'd find the target file and those values (EdiZon maybe?)
I want to get Gal*Gun Returns running at 60fps and I think the switch could take it with a minor overclock

masagrator · Feb 13, 2021

My typical pattern:
- Check romfs. Most UE4 and Unity games have 30 FPS locks in romfs. In other engines it's very rare case to be in romfs. Nothing? Next point.
- Disassemble main and search for nvnWindowBuilderSetPresentInterval and nvnWindowSetPresentInterval pointer calls, addresses can be find in nvnBootstrapLoader.
Change last argument to "1". Nothing has changed? Stay with this patches as this can be used additionally with...
- find other fps lock by any other means (disassembled main, memory poking, save editing)

Shahaan · Jun 20, 2022

Same thread different game, Gal*Gun Double Peace it was, since well, it may as well be the best one.
Holy shit I am not cut out for this, I have no idea how to use ghidra, (memory editing didn't yield anything workable, even though it seemed like it did) and this game is the only game I've tried dumping RomFS from that DOESN'T work and believe me I've tried for hours with some devs trying to figure out why, I used nxdumptool AND hactoolnet.
(Double Peace is a pretty hot release, only a couple months ago. Maybe there's something that hasn't caught on yet that changed?)

ROM Hack Question What is the general procedure of making 60fps patches for switch games?

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The patches guy

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